It looks like SVT automatically sets gop (Group of Pictures) and inserts Keyframes in looking at Terje's output line:

"Svt[info]: SVT [config]: gop size / mini-gop size / key-frame type : 161 / 16 / key frame"

and I get the same type of results that he did.

But I also get a warning, which I hope is innocuous; should be or else it would have been "error" instead of "warn"!

"Svt[warn]: Failed to set thread priority: Invalid argument"

Now I have also tried to render the same input file using the (4.3x faster) av1_svt, but with the available 8-bit color depth in 10-bit mode:
17M av1_svt_yuv420p10le_SR.webm

Below follows output messages with no error messages, so yes, I think some preset parameters possibly should be added to the av1_aom.webm: